Wave electric power station

FIELD: power industry.

SUBSTANCE: wave electric power station intended for being installed on or in the sea or lake, for power generation includes floating construction and at least one floating body 1 which is moved vertically in relation to floating construction and is connected to the aforesaid construction through power transmission device. Floating construction includes a deck which is supported in fact with vertical supports. Supports have a pontoon functioning as damper and adapted for being arranged below water level. Deck, supports and pontoon comprise the space within which floating body 1 or bodies are located. In fact, pontoons have square section with oblique angles and with width which is more than height so that the floating construction is essentially fixed relative to still water level.

EFFECT: increasing output energy of wave electric power station.

17 cl, 17 dwg

 

The present invention relates to a wave power plant according to the preamble of the attached item 1 of the claims.

From the publication WO 01/96738 known wave power plant, built on the basis of two bodies that are installed with the possibility of oscillation in opposite phases. Body mounted so that one body forms a ring around the other. Both bodies consist of a floating component and the component masses. The floating component is floating, bobbing on the waves, while the component masses rigidly connected to the floating component and located some distance below the water surface. Component weight designed with a fence surrounding water. When opening and closing the ports of the component mass inertia of this component can be changed. Thus, the natural frequency of oscillation of the bodies can be coordinated with the frequency of the waves. In addition, for two bodies you can set a different frequency, with the result that they not fluctuate synchronously. The hydraulic connection between the two components provides energy recovery.

Opening and closing the ports of the component mass means that it uses moving parts that are more or less immersed in water during the entire time. These parts are under considerable stress, and they are about the relatively inaccessible for maintenance. The connection between the component masses and the floating component also affects a significant load. Another significant disadvantage is the significant movement of the two bodies. Thus, maintenance of the power plant during its operation becomes almost impossible.

Wave power is also known from US 5359229, in which the floating body partially filled with water, excited through the waves.

In addition, from US 4931662 known wave power plant, in which the natural frequency of oscillation of a floating body can be adjusted for the period of waves through a system of ballast.

In GB 2043790, US 4742241 and US 4453894 also disclosed a wave power plant.

The main objective of the present invention is to increase the output energy of the wave power plant. This is achieved by installing a floating body, fixed in place during part of the body motion induced by wave, to increase, thus extracting energy from the waves.

The second objective of the present invention is to create a plant with a more simple design with a minimum number of submerged moving parts. In addition, the present invention also aims at providing the possibility of movement around the plant during its operation. The present invention also is designed is but to improve the efficiency of power plants of this type.

Power plant with an even higher efficiency is obtained by installing a floating body, held both in the lower and upper fixed positions, and the lower position are chosen so that the wave crest applies to the floating body upward force, which is greater than the weight of the body, and the upper position is chosen so that the weight acts downward force that is greater than the power exerted by the passage of the sole of the waves.

Improved power is obtained by the development of floating bodies that float, tossing on the waves, and which is partially filled with water, while connecting them with the floating structure through devices energy transfer.

Floating body contain a means of increasing or decreasing the volume of water in the floating bodies, which allows you to adjust the natural frequency of oscillations of floating bodies with wave period.

The tool includes an opening at the lower end of the floating body, which makes it easy to fill the floating body surrounding water.

The tool also contains close the hole at the upper end of the floating body, which provides easy access to displace air when filling the floating body.

Alternatively, the tool also contains an adjustable extension of the floating body, and this lengthening developed the ANO so, what it can do water that allows you to fill in the body to a greater or lesser degree water when the extension or retraction of the extension.

Floating structure contains the truss-beam construction, which formed a chamber for receiving the respective floating bodies, which forms a simple floating structure, which is relatively not affected by the motion of the waves.

Truss-beam design contains pipes, made of lightweight material, preferably plastic, such as PVC, which enables the creation of inexpensive and lightweight structures with high intrinsic buoyancy.

The floating body has the shape of a cylinder with rounded ends, which provides a simple in the production of a floating body with good qualities.

Increase or decrease the depth of immersion by immersion or lifting of the floating body to the desired depth and provide opportunities for water to enter inside or be released from the floating body until the water level inside the floating body will not be approximately the same as the outside of the floating body, provides a simple management tool depth.

Thus, the present invention provides a wave power plant, intended for installation on or in sea or lake, for producing the tva energy, containing floating structure and at least one floating body, which is moved vertically relative to the floating structure and is connected to the structure through the energy transfer, while the floating structure includes a deck that is supported by the essentially vertical supports, and the supports have a pontoon, functioning as a damper adapted for placement below the water level; and a deck support and a pontoon form a space within which is located a floating body or bodies, and the pontoons are essentially square cross-section with sharp corners and with width greater than height so that the floating structure is essentially fixed with respect to the calm water level.

In yet another embodiment, the present invention provides a wave power plant, intended for installation on or in sea or lake, for energy production, containing floating structure, and at least one floating body, which is moved vertically relative to the floating structure and is connected to the structure through the device for power transmission, with a floating body or bodies are made so that their hold over the parts induced by the wave motion of the body to increase energy extraction from waves and floating bodies designed with actiongo fill them with water, this floating body contain a means of increasing or decreasing the amount of water in the floating bodies, the tool contains a hole at the lower end of the floating body, and the tool also contains close the hole at the upper end of the floating body.

In another embodiment, the present invention provides a wave power plant, intended for installation on or in sea or lake, for energy production, containing floating structure and at least one floating body, which is moved vertically relative to the floating structure and is connected to the structure through the energy transfer, and a floating body or body adapted for swimming on the water surface and to partially fill with water, and a floating body or bodies contain a hole in the lower part of the body and closing the opening in the upper part of the body, and the hole in the upper part is made with the possibility of opening for ensure free passage of air at the inlet of the water inside and release it through the holes at the bottom to increase or decrease the amount of water inside the floating body or bodies, ensuring their natural frequency.

In yet another embodiment, the wave power plant is provided, which is intended for installation on or in sea or lake, for producing the STV energy, containing floating structure, and at least one floating body, which moves vertically relative to the floating structure and is connected to the structure through the energy transfer, in which a floating body device energy transfer, which is performed with the possibility of energy extraction in the vertical movements of the floating body and at least one device for energy transfer, which is adapted for selection of energy resulting from the impact of horizontal forces acting on the body.

The invention will be described in more detail below using preferred embodiments and with reference to the accompanying drawings, on which:

on figa and 1b illustrates a floating body with a corresponding suspension in the upper and lower positions, respectively;

on figa shows a view in section of the body of figure 1;

on fig.2b shows a view in section of another embodiment execution of the floating body;

figure 3 shows an alternative suspension and alternative floating body;

figure 4 schematically presents an illustration of the sequence of movement of the floating body in accordance with the invention;

figure 5 shows the structure of the ligament, which acts as a floating structure;

figure 6 shows an alternative embodiment of the plant in accordance with the laws the AI with the invention;

on figa-f shows a diagram representing the behavior of the floating body at different depths of immersion, depending on the wave period;

on Fig shows an additional embodiment of a wave power plant;

figure 9 shows another embodiment of a floating power plant; and

figure 10 shows an additional embodiment of a floating power plant.

On figa and 1b illustrates a floating body 1 with the appropriate suspension. In a preferred embodiment, the floating body 1 has a circular cylindrical middle section 2 and two hemispherical end 3 and 4. This form is similar to the so-called egg Kinder surprise". The body has a so-called hollow construction which may be made of a suitable metal or plastic, such as PVC.

On figa shows a view in section of the floating body 1. The body has an inner wall 5 which divides the internal volume of the floating body into two cavities, the upper chamber 6 and a lower cavity 7. The pipe 8 extends through the wall 5 of the lower cavity and out through the upper hemispherical part 3 of the floating body 1. On the upper end of the pipe 8 is set a closing device (not shown).

In the lower hemispherical portion 4, preferably at the lowest point floating body is formed a hole (not shown). Water meters which may enter through the hole in the bottom cavity 7, when air trapped in it, you can exit through the pipe 8. On figa the water level indicated by item 10.

Letting in more or less water into the cavity 7, you can manage the weight and thus the displacement of the body 1. This affects the natural frequency of oscillation which varies floating body, as will be clear from the following description.

The floating body 1 is suspended on the rod 11, which is connected with the rod 11a of the piston in hydraulic or pneumatic cylinder 12. The upper end of the cylinder 12 is attached to the chassis 13. It is obvious that the piston rod and the cylinder can be set in the opposite position so that the cylinder will be mounted on the floating body, and the rod on the frame. Alternatively, the hydraulic cylinder may be located adjacent to the guideway. You can also use two cylinders, one is used when moving up and the other is used when moving down. The frame 13 includes a frame 14 of the horizontal beams and vertical beams 16, 17, 18, 19, which extend down from her. Beams 16, 17, 18, 19 mounted on the lower frame 20 composed of beams. The beam can be a beam, made of metal or plastic, such as PVC. Also used intermediate frame 15, which, in principle, similar to the frame 20. In the center frames 5 and 20 installed rails 15A, 20A, respectively, continues through which the rod 11.

On fig.2b shows a view in section of another embodiment execution of the floating body 1. Here the body has a completely open basis, instead of the hemispherical base with a small hole. This body also has an inner wall 5 which divides the internal volume of the floating body into two cavities, the upper chamber 6 and a lower cavity 7. The pipe extends through the wall 5 of the lower cavity and out through the upper hemispherical part 3 of the floating body 1. On the upper end of the pipe 8 is set a closing device (not shown).

Fully open base provides the possibility of more rapid filling of the body and emptying of the body. It plays an important role in situations when you need to make a quick adjustment of the change of period.

Figure 3 shows an alternative suspension floating body. Here the floating body 60, which also has an alternative shape (ellipsoid), suspended on three diagonal cylinders 61, in addition to the suspension on the Central cylinder 12, as in the embodiment shown in figures 1 and 2. Three cylinder 61 are appropriately fastened one end to the lower frame 20 through a universal connection, and the other end to the floating body. In the lower position of the floating body 60 cylinders 61 the mouth of alluaudia at an angle of approximately 45 degrees to the vertical, and in the upper position of the floating body cylinders 61 are arranged in more or less horizontally. This means that they absorb horizontal forces from the floating body 60. Vertical forces are transferred to the vertical cylinder 12. Thus, it is possible to eliminate the vertical guides of the floating structure. Power absorbed diagonal cylinders 61, can also be used to produce electricity. The cylinders 61 can also be installed at some distance horizontally from the vertical cylinder 12, which provides the possibility of absorption through the cylinder 61 forces caused in the longitudinal pitching and pitching side of the body.

The use of the present invention allows to optimize the extraction of energy from the movement of waves and floating bodies 1, which moves more than the waves.

Figure 4 shows the nine provisions of the floating body. These provisions represent the state in which the first wave approaching the floating body 1, when the floating body is motionless, and then subsequent waves move the floating body. In position 1 wave approaching the floating body 1, and in this case the sole is wave affects the body, which is completely stationary. In the present case, the wave approaching from the eve side. In position 2 the wave begins to rise around the floating body. The floating body is held in place by support rod 11, which connects the body with the platform in a fixed position. When the wave crest reaches the floating body, it is released, as shown in position 3, by releasing the fixation of the rod 11. The floating body when this emerges with great force and at high speed. When the body reaches its highest position, the rod 11 is again held in a fixed position, leaving the floating body 1 in limbo, as the wave passes, as shown in position 4. When the sole of the wave is located approximately directly below the floating body, his release, and it falls to the bottom of the wave, as shown in position 5. Floating body while immersed deeper than in position 1. As a result of this water is increased further relative to the floating body 1 when approaching the next wave crest, as shown in position 6. At this time, when the body 1 release, it sharply rises to a greater height than at position 4, as shown in position 7. Then the body falls even deeper, when it again release on the bottom of the wave, before it will lock. The amplitude increase continues until, until it reaches the maximum amplitude is. The value of the maximum amplitude depends, inter alia, on how accurately you can find the resonance frequency. Thus, an aspect of the present invention is that the floating body is filled with water to such an extent that installs the frequencies of the floating body is close enough to the frequency of natural oscillations of the waves.

Preferably the position of the rod 11 is fixed with the help of hydraulic fixation, for example by using the opening and closing of the valve. When the rod 11 is necessary to hold in place, the valve is closed, and then open to release the floating body.

Moments in time to which you want to release the floating body from the provisions of 2 or 8 can be identified by a vertical force applied to the floating body wave. The ideal time is when the vertical force acting on the part of the wave is maximum. This force can be measured using sensors in the hydraulic system. However, the wave should not pass over the top of the floating body, as in this case, the floating body requires a certain force to break the surface of the water.

After opening the valve, which locks the hydraulic mechanism, it can be left open for approximately time, is AutoRAE required to wave the diameter of the floating body. In the ideal case, the floating body will then be in the position of maximum lift. If necessary, can be installed sensors that measure the position of the rod 11 and which close the valve when the rod begins to move again down.

The floating body in the ideal case, you need to release so that it fell to the ground wave. Therefore they can be installed sensors measuring the height of the wave relative to the floating body and releasing it when the sole of a wave is directly below the floating body.

Thus, the stroke length of the rod 11 will be greater than the height of the wave, while the period remains the same. This leads to significantly improve the efficiency of wave power station.

The energy derived from each floating body, if the floating body does not hold, as described above, and allow him to follow the wave motion is described by the formula (1)below

where

E represents the output power in kilowatts;

D represents the diameter of the floating body, measured in metres;

HSrepresents the significant wave height measured in metres;

Tpis the wave period, measured in seconds.

This formula is built on the core is ve floating body, having an elongated shape with rounded ends, in the main, as shown in figure 1.

If the floating body hold and release, as described above, as shown in figure 4, you should use the formula (2)

where

E represents the output power in kilowatts;

HSrepresents the significant wave height measured in metres;

Tpis the wave period, measured in seconds.

Dprepresents the displacement of the floating body, measured in tonnes;

R represents the remaining energy after the release of the body, measured in tonnes;

K1is a constant, approximately equal to 0;

To2represents a parameter approximately equal to OJSC (RAO) operator (amplitude response), which must be equal to 1 if the movement of the body follows the motion of the waves.

To3represents a constant, which in an ideal situation, approximately equal to 2.5, but which may be in the range from 1 to 3.

The member To3P in the formula (2) represents the contribution from holding the floating body until wave gives the body the maximum force up prior to the release of the body. You can also say that this member is an additional displacement of the body. It was determined that the amount of displacement of a body created by the som net body and additional displacement obtained from the retention body, should not exceed V·ρ, where V represents the total volume of the floating body, and ρ is the density of water. If this value is exceeded, the output energy can be reduced. Another condition is that the water level should not exceed the upper part of the body.

Example.

Waves have a significant wave height of 4 m and a period of 8 C. Use a floating body with a diameter of 3.5 meters. When using formula (1) according to this data, the output power is 135 kW, when the body follows the motion of the waves.

If the displacement is set to 1000 kg (which is provided when filling out the body of water) and hold the body up until the upward-directed force on the part of the wave will not be 24900 kg, and assume that K3equal to 2.5, while K2(that is, JSC) is equal to 1, the output power will be 317 kW. This represents a significant increase in power output, even at a conservative assessment and JSC equal to 1. However, as will be clear from the following description, it can be expected that when using this method, the value of the JSC will be great.

The above formula does not take into account the frictional resistance and a similar loss coefficients.

Figure 5 shows an example of the options for performing a floating structure. It consists of a Central, prod is through the rigid frame 26 with truss-beam structure 21, preferably made of PVC pipe, composite or other lightweight, cheap and durable material, which continues until both sides of the frame 26, and this truss-beam structure 21 forms a chamber 22 for floating bodies 1, and the wheel 27 on one side of the frame 26. Build a floating structure of the pipes allows to provide sufficient buoyancy even due to the fact that inside the pipe is the air. Therefore, you probably will not need to use other elements, providing buoyancy.

To provide the possibility of reducing the size without compromising the structural integrity of the floating structure equipped with a mast 40, which stretched the cables 41 to the connection points on the structure. When using this design structure is stabilized in the same manner as the suspension bridge, and the whole structure can be made lighter and thinner, without any consequences for the buoyancy of the structure. Instead of diagonal tubes 25, shown in figure 4, you can use wire ropes. At the top of the mast can be mounted signal light.

As can be seen in figure 5, the floating structure, in General, has the shape of a boat with the narrower end located opposite the wheel 27. During operation, this end must be installed in the direction of the waves. Therefore, the waves that hit the structure is, first will hit a few floating bodies in front of the structure. After this wave will be propagated back and will hit the increasing number of floating bodies. This prevents damping of waves of the first floating bodies and, thus, reducing the energy transfer to the rear bodies.

Floating body does not need to be installed in all chambers 22. It may be appropriate to leave some camera blank, which enables the propagation of waves through the structure with minimal damping before they hit the next floating body.

Preferably those cameras that has a floating body, at the bottom of the camera installed crosswise elements 28, which prevent the fall of the floating bodies during repair or in the event of an accident.

The floating structure must be properly secured with anchors, so that the front part (nose) was directed to the predominant direction of wave propagation. On Board can be installed winch, which weaken and pull the anchor ropes to rotate the structure in the direction of wave propagation. On the steering wheel 27 to this end can be fitted with sensors that record the direction of wave propagation and transfer the t signals to the winch, which, in turn, weaken and pull the anchor ropes to rotate the structure against the waves.

The structure of this type, which is fixed with respect to the direction of propagation of the waves, will also function perfectly as a breakwater designed for cutting of incoming waves, for example, in the port construction. In this case, this structure, preferably, should be made rectangular and should be fixed in relation to the port structure.

Transfer hydraulic energy generated in the hydraulic cylinder 12 for later use, it will be obvious to those skilled in the art. It can be done, for example, the transmission of hydraulic pressure through hydraulic lines to a hydraulic motor which, in turn, drives the electric generator. Then electrical energy can be passed on to the shore normal and obvious way.

The structure may be equipped with a damping device which DAMPS the movement patterns induced by waves, to ensure the least possible extent of its movement in the vertical direction. As dampers waves can be used, for example, the dampers of this type, as described in Norwegian patent No. 300883 or in Norwegian patent No. 300884. In the line is the habitual patterns with the highest degree of immobility for staff is provided the opportunity to walk on the deck of the structure for maintenance or adjustments.

The floating body can be filled with water by opening the closing device located in the upper part of the tube 8 (see figure 2). It is located above the water and, thus, is easily accessible. During this operation, the piston rod can be locked hydraulically to prevent movement of the floating body. After opening the closing device, water flows through the hole 9 in the base floating body. Through the retention of the floating body at a given depth, the water can fill the floating body to the same level inside the body and outside. After that, the closing device can be closed and to release the hydraulic lock. The depth of immersion while filling with water to determine the dominant frequency of the waves. If it changes, e.g. due to seasonal changes, the procedure can be repeated. The floating body moves up and down with hydraulic control at the desired depth, and the closing device is opened to fill it with plenty of water or to release the water. Alternatively, hydraulic lifting floating body up or lowering down you can use the crane, which can be permanently mounted on a floating structure. Other floating body during this operation can continue about svojstvo energy in the usual way. The purpose of the partition 5 is to prevent overflow floating body water. The partition 5 is the top water level inside the floating body. Because of this, the floating body cannot sink in the event of a malfunction, in which the floating body is separated from the suspension.

Alternative power plant will be described below with reference to Fig.6. It uses a Central, preferably circular floating structure 30. Preferably it has dampers waves such as those described in Norwegian patent No. 300883 or in Norwegian patent No. 300884 intended to keep it as largely fixed. Around the floating structure are floating body 31, which can move vertically along the guide rails 32.

Here the floating body 31 is made as a round cylinder. They contain the upper tube 33 and the lower tube 34. The lower tube 34 can move relative to the upper tube 33 by means of a hydraulic or pneumatic actuator 35. The lower tube 34 is open from the bottom side that allows you to fill it with water. The top tube has a wall 36, which does not allow water to enter farther up the tube. When moving the lower tube 34 up and down, it can act with the upper end of the tube 33 to a greater or lesser extent. This means that part of the ate, filled with water, can be longer or shorter. The longer fulfilled this part, the more water can "transfer" the floating body when moving up and down under the action of waves.

On Fig shows an additional variant of execution, in which the floating body 50 is installed on the rods 51, continuing through the channel into the floating body. This eliminates the need to use a fully connected structure for forming chambers designed to hold the floating condition of the Floating structure can therefore be made relatively simple and, as shown, may consist of a base 52 and a variety of supports 53, which extend from the base and have the deck 54. Preferably the deck 54 is made in the form of a truss-beam structure. Preferably the guide rails fixed on the base 52, but they can also be attached to the deck 54. The base 52 and the bearings 53 can also be made in the form of a truss-beam structures.

The base 52 may have such a form that it will rise from the end of the incident wave to the end of the outgoing wave, or it may be convex.

Otherwise, this option may be constructed in the same way as options, which appear in figure 1-5. Hydraulic cylinders can be attached by Bo who am guideways 51.

The base is formed with spoilers, can be installed in versions of the floating structures, shown in figure 5 and Fig. If necessary they can be adapted to the movement of the waves, which allows to build up the height of the passing waves to transmit energy of the surface waves, which allows you to transfer more kinetic energy floating bodies.

Figure 9 shows an embodiment of a floating structure. It consists of a deck of the platform 60, composed of horizontal beams in a truss-beam structure, and this truss-beam structure forms a chamber 61 for floating bodies 1. On each corner of the deck platform established base 62 of the platform. The tool 63 damping of waves installed around each support 62. Preferably the floating structure is a structure with low weight, with its own buoyancy provided due to the fact that for the structures use hollow beams and pipes. It is possible to provide sufficient buoyancy for the platform is simple, due to the presence of air inside the bearings 62 of the platform. So probably will not need to use additional elements that provide buoyancy. However, they can be installed if necessary.

The tool 63 damping of the waves made so that it captures the water through a hole 66 in the OS is the Finance support 62. Water is diverted mainly in the horizontal direction and flows through a narrow hole 67 on the sides of the damper waves. In the upper part of the damper 63 is formed by a curved surface 65, which acts on the water when the platform rises, forcing to change the direction of water flow. Thus, movement of the platform campfires. A similar curved surface is used on the bottom side of the damper, which inhibits the downward movement of the platform.

Figure 10 shows an additional alternative embodiment of a floating structure in accordance with the present invention. It has characteristics similar to a variant implementation, shown in figure 9. The most significant difference is that in an embodiment in figure 10 pontoons 64 continues between the lower ends of the supports 62 of the platform, and that the guide rods 65 extend from the floating bodies 1 through the holes in the pontoons 64. Through the use of guide rod 65 frame 13 which is located above the deck 60 platform, can be omitted below, and if you want to control rod 11 in only one place.

Figure 10 is not shown means of damping waves; however, it is obvious that they can also be used in this embodiment.

In all variants of execution should ensure the possibility of placing ballast the floating structure to change its displacement, providing, thus, the optimum movement of waves through or around the structure.

The influence of the amount of water inside the floating body or the depth of his immersion will be described below with reference to the scheme shown in Fig.7. In these schemes the wave period in seconds is indicated on the horizontal axis, while the vertical axis indicated by the vertical deviation of the floating body, in proportion to the operator of the response amplitude (JSC) wave height. JSC equal to 1, means that the floating body moves in phase with the waves. All diagrams can be seen that requires a certain length of period that the body began to move vertically. This is due to the fact that in the short period waves are formed short wave. When this body will simultaneously be on the crest of a wave and its sole. Thus, these two effects cancel each other. With increasing wave period wave becomes longer, and the body increasingly will influence the forces that are pushing him in one direction.

On figa floating body of this type, as shown in figure 1, with a diameter of 3.5 meters, was filled with water, in order to obtain a depth of 0.5 m, and tested with the embodiment of the method, in accordance with reference to figure 4. In this case, the body followed the motion of the waves, on the other with period waves 4 and more.

On fig.7b the same body was filled with water, so that it sank to a depth of 1.75 m In this case, there were several larger deviation than the height of the wave, when the wave period 4, but only slightly.

On figs the same floating body was filled with water until, until it reached the depth of 2.5 m In this case was significantly greater deviation of the floating body than the height of a wave when the wave period 4 C. It can be seen from JSC, which is greater than 1.

On fig.7d body of figure 1 was filled with water to the depth of 3.5 m, the Deviation in this case was still high relative to the wave height, the wave period approximately 4.5 C.

On file the same body was filled with water to a depth of 4.5 meters. This deviation was significantly greater than the height of a wave when the wave period is approximately 6 C.

On fig.7f body was filled with water to the depth of 5 m, the Maximum value of OJSC now amounted to 10, that is, the deviation can be 10 times greater than the wave height. The maximum deviation in this case receive at approximately 7 C.

On this basis, it can be seen that it is possible not only to increase the deviation of the floating body by increasing the depth of immersion, increasing, thus, the quantity of energy produced; the natural frequency of the floating body also depends on the depth the ins dives. In the case of small wave period the depth of the floating body must be reduced, since, otherwise, the deviation is smaller than the wave height. In the case of a large period waves can be used more depth, which will lead to increased energy production.

You should also be aware that when using the present invention the wave power plant must be equipped with sensors that need to measure the period of a wave and automatically increase or decrease the depth, depending on the wave period. Using the techniques described with reference to figure 4, it would be advisable to try to optimize the output energy by filling the body of water, to obtain resonance, i.e. the natural frequency of oscillation of a floating body, as much as possible to the period of the waves.

1. Wave power plant, intended for installation on or in sea or lake, for energy production, containing floating structure and at least one floating body, which is moved vertically relative to the floating structure and is connected to the structure through the energy transfer, wherein the floating structure includes a deck that is supported by the essentially vertical supports, and the supports have a pontoon, operating in the ka is este damper adapted for placement below the water level, and the deck supports and pontoon form a space within which is located a floating body or bodies, and the pontoons are essentially square cross-section with sharp corners and with width greater than height, so that the floating structure is essentially fixed with respect to the calm water level.

2. Wave power plant according to claim 1, characterized in that the diameter of the supports, essentially equal to the diameter of the floating body or phone

3. Wave power plant according to claim 1, characterized in that the damper is adapted to capture water when the structure is moved under the action of waves, and to redirect the flow of water flowing essentially vertically in essentially horizontal flow.

4. Wave power plant according to claim 2, characterized in that the supports are open at their lower end so that water can leak inside the supports and to flow through the damper waves, when the structure moves down toward the water.

5. Wave power plant according to claim 3 or 4, characterized in that the dampers waves on the top and/or bottom ends have a bend that directs the water.

6. Wave power plant, intended for installation on or in sea or lake, for energy production, containing floating structure and at least one floating body, which AC is attached vertically relative to the floating structure and is connected to the structure through the energy transfer, characterized in that the floating body or bodies are made so that their hold over the parts induced by the wave motion of the body to increase energy extraction from waves and that the floating body is designed with a partial fill them with water, with floating body contain a means of increasing or decreasing the amount of water in the floating bodies, the tool contains a hole at the lower end of the floating body and the tool also contains close the hole at the upper end of the floating body.

7. Wave power plant according to claim 6, characterized in that the floating body is made with the possibility of retention in the lower position and the upper position and the lower position is chosen so that the wave crest applies to the floating body upward force, which is greater than the weight of the body, and the upper position is chosen so that the weight of the body is impacted with a force directed downward, which is greater than the power generated by the sole of the waves.

8. Wave power plant according to claim 6, characterized in that the means also includes an adjustable extension of the floating body, which is made for the reception of water.

9. Wave power plant according to one of p-8, characterized in that the floating structure contains the truss-beam structure, which is formed of the camera is what's to keep the relevant floating phone

10. Wave power plant according to claim 6, characterized in that the floating body is supported on the guide rail, which is attached to the structure.

11. The wave power plant according to claim 10, characterized in that the truss-beam structure contains pipes, made of lightweight material, preferably plastic.

12. Wave power plant according to claim 6, characterized in that the floating body has the shape of a cylinder with rounded ends.

13. Wave power plant according to claim 6, characterized in that the floating structure comprises a base made of adjustable features designed for accumulation of the height of the passing waves, which allows you to transfer the energy in a surface wave, which transmit more energy into the floating body.

14. Wave power plant according to claim 6, characterized in that the displacement of the floating structure, you can increase or decrease using the ballast structure, to maximize the movement of waves through or around the structure.

15. Wave power plant, intended for installation on or in sea or lake, for energy production, containing floating structure and at least one floating body, which is moved vertically relative to the floating structure and is connected to the structure through the energy transfer, characterized in that the floating t is lo or body adapted for swimming on the water surface and to partially fill with water and that the floating body or bodies contain a hole in the lower part of the body and closing the opening in the upper part of the body, and the hole in the upper part is made with the possibility of opening to ensure free passage of air at the inlet of the water inside and release it through the holes at the bottom to increase or decrease the amount of water inside the floating body or bodies, ensuring their natural frequency.

16. Wave power plant, intended for installation on or in sea or lake, for energy production, containing floating structure and at least one floating body, which moves vertically relative to the floating structure and is connected to the structure through the energy transfer, wherein the floating body includes a device for energy transfer, which is performed with the possibility of energy extraction in the vertical movements of the floating body, and at least one device for energy transfer, which is adapted for selection of energy resulting from the impact of horizontal forces acting on the body.

17. The wave power plant according to item 16, characterized in that the device power transmission is a hydraulic cylinder.



 

Same patents:

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical power engineering, particularly to electricity generating installations which convert energy of sea waves. The wave electric power station contains pivotally connected floats of a profiled floatation raft with a dynamic anchor, freewheel clutch and torque-limiting clutch. The electric power station is fitted with a self-adjusting bubble breaker, which includes a pneumatic blower driven by the former, starting from the head, floats of the profiled floatation raft, air pipe and an air-distribution pipe, placed on the arms of the dynamic anchor in the water space in front of the head float, and a device for automatic control of air release, for example in form of a stop valve activated by floats. Pivotal connections of the first floats are provided with pneumatic shock-absorbers, for example combined with pneumatic blowers. Drive wheels of these floats are linked with the latter through combination sleeves, which comprise freewheel clutch and torque-limiting clutch.

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FIELD: power engineering.

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EFFECT: provision of use of wave irrespective of amplitude of waves.

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FIELD: power engineering.

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EFFECT: provision of operation at any depth.

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The invention relates to power engineering and can be used in devices for converting wave energy into electrical energy

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The invention relates to a device for the conversion of wave energy into electrical energy

The invention relates to the production of electricity, in particular the production of environmentally friendly electricity without having a negative impact on the environment by converting the energy of sea waves and wind

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FIELD: engines and pumps.

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EFFECT: simpler design and higher reliability.

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Wave power plant // 2316670

FIELD: power engineering.

SUBSTANCE: proposed plant is designed for converting energy of waves into electric energy. Proposed plant contains vertical support secured on bottom, rocking rod installed on support for rotation around axis of support, float secured on one of rod ends. Float is provided with intake bottom hole and outlet top hole, both provided with remote controlled valves, and electric generator. Upper end of support remains under water at any possible magnitudes of waves. Wave magnitude sensor is connected with remote controlled valves, float is connected to pneumatic line connected with pressure source, rocking rod is connected with pump which is connected by pipeline with accumulator of hydropotential energy on shore, electric generator is located on shore and is coupled with hydraulic turbine connected with accumulator of hydropotential energy. Plant changes to safe mode of operation owing to filling of float with water at excess of magnitudes waves determined by corresponding wave magnitude sensor.

EFFECT: provision of reliable and long operation.

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FIELD: power engineering.

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EFFECT: increased efficiency.

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The invention relates to hydropower and is designed for converting sea wave energy into electrical

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FIELD: power engineering.

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EFFECT: increased efficiency.

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FIELD: power engineering.

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EFFECT: provision of reliable and long operation.

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